Boot-Update

Funtoo boot-update provides a unified mechanism for configuring the GRUB 1.9x (sys-boot/grub (package not on wiki - please add)) and GRUB 0.97 (sys-boot/grub-legacy (package not on wiki - please add)) boot loaders. It is the recommended, official way to configure Funtoo Linux systems for booting.

First Boot, and in the future...

OK -- you are ready to boot!

You only need to run grub-install when you first install Funtoo Linux, but you need to re-run boot-update every time you modify your /etc/boot.conf file or add new kernels to your system. This will regenerate /boot/grub/grub.cfg so that you will have new kernels available in your GRUB boot menu, the next time you reboot.

Should you receive this message, you will have to install grub-legacy from the grub shell.
Assuming /boot is the partition /dev/sda1 and you want to install grub to the MBR, you would run the following:

# grub-legacy
root (hd0,0)
setup (hd0)
quit

When adjusting to fit your setup, remember 'root' is the location of your boot partition, 'setup' is where you want to install grub, and don't forget about grub's unique naming conventions for hard drives / partitions. For more information run:

# info grub-legacy

Ensure that /etc/fstab is correct, and edit /etc/boot.conf to reflect your installation.
Ensure a generate grub-legacy setting in the boot section. Then run:

# boot-update

This will auto-generate the /boot/grub-legacy/grub.conf required for booting. Note that grub-legacy-0.97-r11 and later stores grub.conf in the /boot/grub-legacy directory.

Re-run boot-update every time your available kernels / initrds or /etc/boot.conf configuration changes.